Brake mechanism



July 2, 1929. B. s; FLORADAY BRAKE MEGHANI SM Filed March 25, 1926 INVENTOR.

A TTORNE Y.

jurion -5. floradqy Patented July 2, 1929.

UNITED, STATES PATENT OFFICE.-

BURTON s. FLORADAY, or DETROIT, MICHIGAN, ASSIGNOR To HYDRAULIC imam.

oomrm, or DETROIT, Jamaican, A coRroRATroiv or CALIFORNIA.

BRAKE MECHANISM.

Application filed March 25, 1926; Serial No. 97,208.

My invention relates to improvements in vehicle brake mechanism.

In brake mechanism of such a character provided with an internal band, it is intended that the band should be concentric with the brake drum. The band is supported intermediate its ends from an anchorage and the initial adjustment thereof to properly position it relative to the drum is accomplished by some suitable means,

such as adjusting screws capable of actuating each end of the band. Such an ad ustment commonly results in distortion 0 the hand between the point' of adjustment and the point of anchorage.

It is the object ofthe present invention to provide an anchorage for the band which in,

conjunction with the adjusting mechanism employed, permits free swingable movement of each end of the band from the anchorage as a pivot, thereby insuring accurate initial adjufstment without distortion of the band itsel x It is common practice to make use, of an anchorage which enables the band to move radially inwardly and outwardly over such anchor point. I ported anchor block which rocks with the hand during its adjustment and which also permits radial movement of the band thereover. i

' The above objects together with other meritorious advantages will more fully appear from the following specification, accompanying drawing and appended claims.

In the drawings,-

Figure 1' is a vertical sectional view through a. brake mechanism embodying my invention.

Fig. 2 is a cross-sectional view taken on line 22 of Fig. 1. i

Fig. dis a cross-sectional view taken on line 3-3 of Fig. 1.

In the drawing, let 10 indicate the brake drum, 11 the carrier, and 12 the sheet metal band provided-with a frictional facing 13. The opposite ends of the band are held toward each other by a spring 14 attached at each end to a bracket 16 secured to the band.

The band is anchored ata point intermediate its ends by means of a saddle or anchor 18 which is slidably mounted upon an anchor block 20, which block is ivotally supported upon an anchorpin 22, or rockable movement. expansion spring 24 is concentrically complish this result.

provide a pivotally suping the application of the braking interposed between the saddle 18 and the anchor block 20 to hold the. band. away from the drum. An adjusting pin 28 having a cam face 30 engages the saddlewhereby the i 5 band may be moved inwardly toward the; drum against the resistance of the spring 24. A look nut 32 is associated with the screw 28. The adjusting screw 28'and anchor pin 22 are both supported by the carrier: 11. A cotter-pin 34 is shown as extending through the anchor pin 22. v An operable cam member 36 is interposed between the turned up ends 38 of the band whereby the band may be spread'outwardly against the brake drum against the tension othespring14.

An internal brake band, when mounted within a brake drum, should be positioned thereof. Initial adjustment of the band is generally necessary to ac- This is'particularl'y the case where the parts are manufactured in large quantities. ith my improved anchorage, this end may be easily achieved without any result- 80, ing distortion of the metal of the band, through actuation of the adjusting screws 40 and 42. Each one of these adjustingscrews is similar in construction to the adjusting screw 28 hereinbefore described. A cam action is exerted by each of the screws 40 and 42 upon the adjacent bracket 16 to force the ends of the band outwardly against the drum against the tension of th spring 14, which spring tends to hold the ends of the band inwardly. The pivotally supported anchor block permits the band to rock there with upon the anchor pin 22, as either end of the band is moved outwardly, and durpresover the block 20 sure the saddle 18 slides so that the band is brought into full contact with the drum.

What I claim is:

1. In a vehicle brake mechanism, a brake drum, an internal brake band, an anchorage for the band intermediate its ends permitting a rocking and radial movement of the band whereby each end of the band ma be pivotally swung upon its anchorage, a justing mechanism to swing each end of the band, said adjusting mechanism being independently adjustable with respect to each of the ends of said band and a sprin interconnecting the portions of the band or con-- mit the ends. ofthe band to swing on the rockable support said adjustable means being independently adjustable with respect to each end of the band.

3. In vehicle brake mechanism, a brake drum, an internal brake band, amanchorage for the band intermediate its ends; comprising a rockably supported anchor block,-

said band anchored thereon to rock therewith, but having a slidable radial movement thereover, spring means interposed between the block and the band to hold the band away from the drum, spring means connecting the opposite free ends of the band to hold them away from the drum,

operating mechanism engaging the free ends of the band to force the band outwardlyagainst-the drum and adjusting means engaging the opposite ends of the band to swing them upon the rockably supported anchor block as a lV0t In testimony w ereof, I sign this specification.

BURTON SLFLO-RADAY. 

